Read Edit View history 正割 zhènggē secant Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 正割 · zhènggē · secant 2026/03/04 正割 zhènggē secant secant (of an angle), written sec θ 在三角学中，正割是余弦的倒数。 created sense Mar 4, 2026, 02:25 AM